The effect of the oxygen dissolved in the adsorption of gold in activated carbon
DOI:
https://doi.org/10.3989/revmetalm.1999.v35.i5.638Keywords:
Activated carbon, Adsorption, Oxygen, lonic strength,Abstract
The effect of the oxygen dissolved on the adsorption of gold in a activated carbon such as these used for carbon in pulp (CIP) and carbon in leach (CIL) processes were studied. The research was oriented to dilucidate the effect of the oxygen dissolved in the gold solution on the kinetics and distribution of the gold adsorbed in the carbon under differents conditions of ionic strength, pH and gold concentration. It was found that the level of the oxygen dissolved influences directly the amount of gold adsorbed on the activated carbon, being this effect more relevant for low ionic strength solutions. The pH and initial gold concentration has no effect on this behavior.
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